ctype_space
PHP function
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(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
Check for whitespace character(s)
Description
ctype_space(mixed $text): bool
Checks if all of the characters in the provided string, text, creates whitespace.
Parameters
textThe tested string. Integer Non-string
Return Values
Returns true if every character in text creates some sort of white space, false otherwise. Besides the blank character this also includes tab, vertical tab, line feed, carriage return and form feed characters. Empty-string
Examples
A ctype_space() example
php
<?php
$strings = array(
'string1' => "\n\r\t",
'string2' => "\narf12",
'string3' => '\n\r\t' // note the single quotes
);
foreach ($strings as $name => $testcase) {
if (ctype_space($testcase)) {
echo "The string '$name' consists of whitespace characters only.\n";
} else {
echo "The string '$name' contains non-whitespace characters.\n";
}
}
?>The above example will output:
output
The string 'string1' consists of whitespace characters only.
The string 'string2' contains non-whitespace characters.
The string 'string3' contains non-whitespace characters.